Swimming pool frame structure



FIG. 1 is a top plan view showing my new design for a swimming pool frame structure, the portion shown in dotted lines is included for illustrative purposes only, and forms no part of the claimed design;

FIG. 2 is a bottom view thereof, the portion shown in dotted lines is included for illustrative purposes only, and forms no part of the claimed design;

FIG. 3 is a front view thereof, the portion shown in dotted lines is included for illustrative purposes only, and forms no part of the claimed design and the right side view is a mirror image thereof; and,

FIG. 4 is a left side view thereof, the portion shown in dotted lines is included for illustrative purposes only and forms no part of the claimed design and the right side view is a mirror image thereof. 

The ormamental design for a swimming pool frame structure, as shown and described. 